312111330020321 has 8 divisors (see below), whose sum is σ = 341630056063464. Its totient is φ = 283379770005120.

The previous prime is 312111330020297. The next prime is 312111330020353. The reversal of 312111330020321 is 123020033111213.

It can be written as a sum of positive squares in 4 ways, for example, as 49212541921 + 312062117478400 = 221839^2 + 17665280^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312111330020321 - 2¹⁴ = 312111330003937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312111330050321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196791506156 + ... + 196791507741.

It is an arithmetic number, because the mean of its divisors is an integer number (42703757007933).

Almost surely, 2^{312111330020321} is an apocalyptic number.

It is an amenable number.

312111330020321 is a deficient number, since it is larger than the sum of its proper divisors (29518726043143).

312111330020321 is a wasteful number, since it uses less digits than its factorization.

312111330020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393583013971.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 312111330020321 its reverse (123020033111213), we get a palindrome (435131363131534).

The spelling of 312111330020321 in words is "three hundred twelve trillion, one hundred eleven billion, three hundred thirty million, twenty thousand, three hundred twenty-one".